Apparatus for manufacturing rubber tires, &amp;c.



E. I. WILLIAMS. A APPARATUS FOR MANUFACTURINGRUBBER TIRES, 6w.

APPLICATION FILED NOV. 5, 1910.

- Patented Oct. 15, 1912.

2 BHEBTS-SKBET 1.

v wuc/wboz W 17 )0, MM.

Qttomw E. T. WILLIAMS. APPARATUS ron nnumownma RUBBER mans, aw.*APPLIOATIOI Pall-ED NOV. 5, 1910. U 1 ,O41,544. Patented Oct. 15, 1912.

2 SHEETS-SHEET 2.

illllllll! "lg EMBYS T. WILLIAMS, OF AKROIPT, OHIO.

APPARATUS r03. mniuracrunme nsman TIRES, 800'.

Specification of we"; Patent.

Patented Oct. 15. 1 9

Application filed November 5, mo, Serial No. 590,852..

To all whom it may concern:

Be it known that I, EMRYS T. \VILLIAMS,

.acitizen of the United States,- residing at Akron, in the county ofSummit and State of Ohio, have invented new and useful In1- provementsin Apparatus for Manufacturing Rubber Tires, &c., of which the followingis a specification.- i

This invention relates to improvements in apparatus for manufacturingarticles of rubber in which the layers of rubber are up plied to amandrel or core and then by means of a suitable device pressed to-formon the mandrel, and it relates particularly to tire casings or sheaths,the'object being to provide an apparat'usof this character having meansfor ell'ectively performing the several operations necessaryto build thecomplete tire-sheath or other article;

'Withthe above object- 'in view the invention consists in the novelfeatures of construction hereinafter fully described, particularlypointed out.inthe claims, and

clearly illustrated by the accompanying drawings, in wlnch- I Figure 1is an end-elevation of a machine or apparatus constructed in accordancewith.

my invention, the-elastic forming-a )1011 -be ing broken away to show'the ormingwheels; Fig. 2, a side-elevation of the machine, and Fig. 3, aplan view of the mechanism for effecting the movement of the formingwheels.

In the larger sizes of pneumatic-tires, the tread is formed of twoparts, a breaker strip consisting of a thin layer of unvulcanized rubberon which is mounted a heavy piece of fabric and a heavy strip of rubberconvex on its outer side which constitutes the tread proper. The breakerstrip isgapporting frame raised from which is an up rightframe Extendingtransversely of the machine bet-ween the upright-frame 2. is

a shaft 3 mounted in suitable hearings on the base-frame 1 and carryingthe large sprockets atwhich are disposed between the sides of theupright frame; Shafts 5 are disposed on the respective sides of theshaft- 1 and extend parallel thereto and are mounted in suitablebearings on the base 1. These shafts carry'cylinders 6 having at theirends sprockets 7. which are alined with the sprockets 4. Passing around,each sprocket 4 and the sprockets 7 alinedtherewith is a chain 8.Stretched over vthe cylinders and transverselybetween the chains 8 is anelas,-- tic apron or fOrming membcr which is attachedto'fandsupporte'dby the chains.

Attached to the inner sides of a frame 45 presently to be described,which slides on the upright-frame 2, are brackets 10 which support atrack 11 extending outside of said frame and located above the elasticapron.

The'ma'ndrel or core consists of a hub 12 carrying radially extendingspokes 13 which tute a core or mandrel for the casing or sheath. The hubhas the axes '15 projecting therefrom which turn on centers 16 carriedby the brackets 10. To place the mandrel or core in the machine orremove the same therefrom, it isrolled along the track 11, the axes 15moving thereon. The-mandrel is adapted to be moved by the sliding framein which it is snpportednto extend downward into the 'space no'rmally.occupied by the elastic apron, thereby. causing the latter at the.'point of Contact to assume the sha )e of the mandrel and grip ittightly. The mandrel is thus caused to revolve as the apron is rotated.

Referring noivmore particularly to Fig.

3, the numeral 17 designates 'two parallel screw-shafts, the threads onone-half of each of which is disposed oppositely to that on the otherhalf. These shafts are supported in plates 18 carried by theupright-frame 2 and each carries at one end. a gear 19. These gears. 19m'eshwith segmental-gears 20 formed on an intermediately pivoted lcver21 having a hand-lcver'QZfor operating it. Movable on the shafts arenuts.23 carryposing forming-wheels '25 are mounted. These wheels havenotched bushings which engage with shoulders on the safts whereby saidweels may be adjusted at various angles to the arms or supports 24. Bymeans.

mg arms or supports 24 on which the op:

" 15 given an initial contact. at thepoint 'marked means of-a cable 52which passes ox'er' 39 I 25 bythetenslon'of the-fapron'lseals the rubbersagging-fin crossing i-the 'gap betive'en the 9 -35 bya lever 30. .Sa'idclutch operates bevel been applied to .the outer periphery of 'sa 4shaft 33 mesheswith a bevel-gear 34 on main drive-shaft iind-said stripis fed to the 195 of the segmental-lever the wheels .may be clutch tobring either one or the other of the quickly and readily-moved to andfrom eachi beifigl gears 31 carried-therebyinto contact other.Thelpnrpose of these wheel's to' withthe-bevel-gear."32. on the lowerend- (ifforce the elastic apron farther up along' the shaft 33; .f Thesliding-frame 45 also carcore or mandrel thereby completel enyelopries'the s'teamkjaoke't4'l-f-which is supported 70 mg that part of thesurface of t e carcas bybraCkets 48 and guide-rods 49 which deof thetire which is tobe ccv'ered 'by, the pend-from the upper cross-barofthefrarne I i tread. It will be readily seen that when the and onwhichthe jacket may be raised and l apron and core are rotated andsa,s'tfip of. .lcwered. ,flhe jacket 'is of such form asto: 10 unvulcamzedrubber'fed into the elastic- 'iiielose aportion of the periphery of thewalled cavity formed by the apron, carcass core or mandrel and isprovided with flexible and wheels 25, said strip must take on theconnections 50 and 51 forming inlets and 1; side next to,the'.carcass',- the;,exact=contoi1r" outlets for theistezgh/ This jacket israised of the latter, particularly if -saidjwheels are and loweredindephdently of the core 'by q and graduallyiiollow up al0 n thepetsheaves 53 ancl'c'a'rrie's a counterweight 54; I riphery of'-"the";-carcass u'ntil point Y is For feeding the rubber forming the treadreached, n 1echan srnfor-that purpose being to the apron, I providethe'pulleys 55 and hereinafter described; -Thus-the air-isiexendlessbelt-56, the latter having 'a'fllo'ngi cludedbetween the carcass andstrip, the tudinal recess therein of sufii'cient ,widthg rollin fi i goiltl ngitudiand depth to contain the rubber-tread and nally by virtueof the depression it makes in ;hold it-in alinement withthe elasticapron,

the apro'n, and thez-formingflvheds forcing; *A' roller 57 isprovided'at the inn r' end of the ah fl T efp s sed the conveyer belt tokeep the'tread from str1p fi mly't h m -k The forming 'belt and apron;'The'belt is'ac'ti 'atd'by a p wheels re'fed'upwarda ong the periphelfysprocket chain "58 which passes around of thecarcass by 'anladfustmentof the ,core' sprockets- 59' and so' carried 'rcsp'ct-ively by" ormandrel.. A f one of the pulleys '55 and shaft-s5. h 1 +i 3111011, -flgmpin drive-shaft In operation the tread-stock is placed 'on carries a;pulley r26 .wh1ch:.1s-belted to a' 'th'ei'carrier belt;- -A core 'ormandrel upon" pulley 2'1 on an idler-shaft 28' m'ountedin whicha-carcass has been moimt'edisthen" the base 1. jA-clutch 29 is'slida'bly attached rolledfby means of the tracks ll, into p'osi to thed f d er-s fi midis operated 'ftionbetween 'the centers in,cenichthai'ing' id 100 s gears31 which are moved, intoand outoff'carc'assa; The cor'eis pcrinittcd'to'dejaressj. contact.with-alievel-gear-32 .on the lower *the-apron toa certain depth. Thebreaker end of a vertical-shaft 33 mounted on the-up- {strip having beenput oritheRzonyey'r belt," right frame. A gear 33f .carried.lalso"by..power is;applied 'to"thepulley 1 on the one end ot a shaft,3. mountedinthe base carcass. After one revolution, the forming- 4 1. This shaft- 35carries a bevel-gear. 36 wheels are fed in-a'little at each successiic'on its opposite end which meshes with-pal revolution and "at the sametime hem-045* similar gear 37 on the lower endof -a vermade to depressthe apron a little more. tical shaft 38 on the opposite-sidelof the up-.he heavy strip of rubber to form the trait-111 10;

right frame to shaft 33, Shafts 33' and 88- 'isthen placed on the beltand t e-mo carry on their pp r f Y -g s 9' .raisedand the operationis-Ircp'eatcdz'tlic "which mesh with s,imila.r gears;40-on horisame asinzthe case, of the breaker st-rip; Zontal Shafts u a y moiinted on theJust before-a completerevolution isfmadc upright-frame.- Bevel-gears 42one, thesethe rearend of the'stock is trimmed so that '115 shafts 41mesh with similar 0n the thezendsx-inay-be butted,-and the rcvol'utiiin'lower ends of screw-shafts 43.which,'are snitthen completed,-., "Afterirevemlf vnlmi gif ably mounted on the upright frame.- ;The' aremadetheheating jacket is lowercd ove'rupright frame is provided withyertical} thempper portion of the tread and'the heat ways 44 in whichthe V-shaped projections renders the rubber lmcicntly plastic'forth'e'120 45 ofa sliding-"frame 45 move'.- The slidingforming-wheels-tb thindowir the edges, s frame carries nuts orscrew-threaded sleeves fewrevolutions inlybeingneces'sary to c'om 46 which engage tlie,screw-sha sso. that plete the opcmtiori.- g'llhe=core=withthe tire as the latterare, rotated the frame is raised thereon isgthen removed fonthevulcanizjia: a 1

or lowered, carrying 'wit hit thegcore or tionof the;.la t ter. a 125 Imandrel and thusefi'ecting'the movement at .-'It' wiltthn's be sdengthatthe 'opei'ationt-of the same relatiif'ely to the -'.tormi ng-wlicclslacing thetrcad on the i'carcasssof the'tire causing thelattert tofeedii'pward along the, is agg'ninplished'by hayingsaidtread inter peripheryof the carcass. ,--Reyerse motion posed between an elastic apron-and thecar v mparted QihKWeWdh ft b 'Qfiss dhydepressingsaid carcass lHtOtlIG'llSQ-D r with elastic'apron to a suitable depth, together the inwardpressure of the wheels,-

formingia cavity of the required shape 'for the tread and insuringperfect contact of the tread and cont-oirr'bf the finished tire. Havingthus described my invcntiomwhat,

I claim. as new and desire to secure by Let ters Patent, is

1. A machine of the character described; compris ng an elastic apron, acore or man-', dreladapted to engage said apron and'press contact, meanson the opposite side of the apron to-the core for causing the apron toconform to contour of the core when said apron is engaged by the latter,and means.

for effecting the movement of the firsbmentinned means tpy'exert apressure along the apron -w;l'iere *ilii'QQIlffiGQSf-flifilill the coreor mandrel. 1'

2. A machine of the character described comprising a core ormandrel, anelastic medium adapted to be engaged by the core, and adjustable'membersarranged on the opposite si'de'df the-.elasticmedium to the core,

for thejp'urpos'e'set forth.-

3: nachineiof the;- character described- COIDPXQSIDg 1a in'andrel orcore, an elastic.

apron, an 'spaced iyhl sj: actin' upon the p iliatocoofperate with theman rel toform a mo r 4. A we... of the character (leashed comprising{mandrel of permanentfform, a,

rotary elastic apron, and spacedwheels actingup'ion' sald-f apron tocooperate'w'ith the mandrel to form a mold.

5. A-maehine of the com risinga mandrel an'eastic apron,- said apron to(:06

mandrel.

it out of its normal plane at the point of.

character described I of permanent form, spaced wheelsfacting i 11.

rate withthofmandre to' form a mold, an means forsimultaneouslyadjusting said wheels with relation'to the 6, A machine ofthe character described comprising a mandrel of permanent form,

an elastic apron, spaced wheels actingupon said apron to cooperate withthe mandrel to form a mold, and screw mechanism for" si-,

"therewith, spaced wheels acting upon said apron to coiiperate' with themandrel toform a mold, means for altering the angle of in- 011113121011of said wheels, and means for s1- m'ultaneously adjusting said wheelsrelative to the mandrel.

9. A machine of the character descrihcd comprising a mandrel, a mold,and a steam jacket, said parts being relatively movable to cause the1acket to partially embrace the mandrel during operation.

.10.]A machine of the class described com- I 'prising'a rotatablemandrel, a mold, and a steam jacket vertically adjustable into heatmgrelation with said mandrel. 3-1 1],', ,A-machine of the characterdescribed comprising a-rotatable mandrel, a mold, and

. a counter-weighted steam jacket I vertically adjustable into heatingrelation with said 'mandrel- 12..A machine of the character describedcomprising a rotatable mandrel, a mold, an axle upon which said mandrelis mounted,

-.and:tracks upon which said mandrel may be rolled into mold; 1'

In testimony whereof I, aflix my, signature in the presence of-twowitnesses.

EMRYS T, WILLIAMS.

coiiperativeposition with the Witnesses:

' G. S. Howan'rn, v v

AMos H. Enonnnnnx.

